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Exponents and Logarithms Practice Questions

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To review these concepts, go to Exponents and Logarithms Study Guide.

Exponents and Logarithms Practice Questions

Simplify the following.

  1. 23 · 22
  2. 4 · 42
  3.  60
  4. 6. 38 · 3 · 3–5
  5. 91
  6. 5–1
  7. 2–3
  8. 10–5

Simplify the following.

  1. e3 · e8
  2. e0
  3. 1n(e2 )
  4. eln(5)
  5. ln(7) + ln(2)
  6. ln(24) – ln(6)
  7. Solve for x when 2x = 10.
  8. Solve for x when 8x = 11.
  9. Solve for x when 3x · 35 = 100.

Solutions

  1. 25 = 32
  2. 43 = 64
  3. 104 = 10,000
  4. 6–2 =
  5. 1
  6. 34 = 81
  7. 9
  8. 25 = 5
  9. 38 = 2
  10. Because we can calculate or else .
  11. 82 = 64
  12. e11
  13. e7
  14. 1
  15. 2
  16. 5
  17. ln(7 · 2) = ln(14)

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